Joseph scixwendemank



(No ModeL) J. SGHWENDEMANN. PARALLEL VISB.

No. 491,817. Patented Feb. 14, 1893.

jjgf I nllflllllllllillllli lhsrrsn STATES- JOSEPH SOHl/VENDEMANN, OFREUTLINGEN, GERMANY.

PARALLEL VISE.

SPECIFICATION forming part of Letters Patent No. 491,817, dated February14, 1893.

Application filed April 30,1892. Serial 110,431,375. (No model.)Patented in Germany October 23, 1890, No. 57,106, and-in England October31, 1891, No. 1,107.

To all whom it may concern.-

Be it known that I, Josnrn SoHwnNDn- MANN, of Reutlingen, Wiirtemberg,Germany, have invented new and useful Improvements in Parallel Vises,(for which I have obtained Letters Patent in Germany, No. 57,106,October 23, 1890, and in Great Britain, No. 1,107, October 31, 1891,) ofwhich the following is a full, clear, and exact description.

The object of the invention is to provide certain new and usefulimprovements in parallel Vises, whereby the position of the vise can beconveniently changed relative to the work bench on which it is applied,and by which the vise can be fastened in place after the desiredadjustment is made.

The invention consists of certain parts and details, and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure I is a sectional side elevation of the improvement; Fig. II is arear elevation of the same; and Fig. III is a front view of thefastening device.

The vise proper is provided with a suitable base a carrying the fixedjaw a of the usual construction, the under side of the said base beingformed with a longitudinally extending slot a engaged by the head 0' andpart of the shank of a bolt 0, extending downward and passing through ahub 6, formed or secured on a plated, let into the top of the work benchb, and secured thereto by suitable screws or other means. From the bolt0 projects a pin f, engaging a vertically arranged slot formed in thehub e and part of the plate (1, as will be readily understood byreference to the drawings. On the threaded end of the bolt 0 screws awinged nut g, abutting on a washer h, engaging the under side of thework bench b, so that when the winged nut g is screwed up, the washer hin conjunction with the head 0 clamps the base a of the vise in positionon top of the work bench. The hub 6 projects downward into a suitableaperture formed in the work bench I). Now it will be seen that byloosening the winged nut g, the vise can be moved forward or backward orturned, the

plate at being the center or the part on which the vise slides. Thus thevise may be moved farther inward or outward from the front edge of thework bench, or set at an angle thereto as desired. When the properadjustment has been made,the winged not 9 is screwed up so as to clampthe vise in place as before explained.

The base a supports a nut 01, extending longitudinally through the base,the rear end of the said nut being formed with a flange secured byscrews or other means to the base, so as to hold the nut in position.Thespindle Z, mounted toturn in the movable jaw it, engages the front ofthe nut 2' so that when the spindle is turned the movable jaw movesinward or outward toward the fixed jaw a of the vise. From the movablejaw is extends rearward a sleeve j fitting into a recess formed in thebase a, the said sleeve being concentric to the nut t and engaging thesame so that the said sleeve has a double bearing, that is, on the nutinternally and on the base a externally. v

A semi-circular plate m, is secured to the front end of the movable jawis and engages an annular' groove formed on the spindle Z, near thehandle end thereof, so that the spindle turns in the movable jaw iswithout sliding out of the same, as will be readily understood byreference to Fig. I.

It will be seen that by turning the handle of the spindle Z, thethreaded end of the latter will screw in the fixed nut 1 so that themovable jaw 70 moves inward or outward, being guided on the base a andby the sleeve j as before explained.

The pin f on the bolt 0 previously mentioned prevents the said bolt fromturning when screwing up or loosening the winged nut g.

It will be seen that the nut and the threaded end of the spindle can beconveniently oiled from the rear end of the nut 41, and at the same timethe moving parts are protected from dust, &c., by being inclosed in thesleeve j. Furthermore, the threads of the spindlel are also protected bythe sleevej, so that they are not accidentally damaged or otherwiseinjured by articles dropping through the jaws into the threads of thespindle.

Having thus described my invention, I screw projects with its pin in thehub slot, the claim as new, and desire to secnre by Letters Washer 71and the nut g on the lower end of 10 Patent: the screw, substantially asset forth.

The combination with a vise havinp" a slot i l V ,r I V 5 a in its base,of the screw 0 having; pin f JOSEPH ENDEMANN' and a head a in said slotand on which the Witnesses: base may turn and slide, the plate d havingPAUL FISCHER, a depending slotted hnb 6 through which said PAULl-lRINKMANN.

